The carrier, like dozens of companies before it, is testing out a service offering consumers special coupons on dining, entertainment and travel. Consumers who sign up for AT&T’s “Deal of the Day” through www.YP.com (formerly yellowpages.com) will have specials sent directly to their inbox.

Deals will launch next month in Los Angeles, Atlanta and Dallas/Fort Worth before expanding to other cities. The move comes as purveyors of yellow-page ads look for ways to adapt their product to the digital environment, particularly as the digital environment seems intent on becoming ever more local.

An AT&T spokeswoman said the carrier has a $1 billion local-advertising business, but wouldn’t expand on how AT&T’s product would differ from those offered by competitors like Living Social and Groupon. The offering is part of AT&T Interactive, which is the company’s business unit that runs online and mobile advertising products through yp.com.